Hydrothermal Synthesis, Crystal Structure and Properties ofSupermolecular Compound (bipyH2)2(H2P2Mo5O23)·H2O

Abstract

Abstract: Anovel molybdophosphate supermolecular compound (bipyH₂)₂(H₂P₂Mo₅O₂₃)·H₂O has been synthesized by hydrothermal method and characterized by crystal X-ray structure analysis, IR spectrum, Raman spectrum, UV-Vis DRIS spectrum, fluorescence spectrum and CV.The crystal belongs to mono-clinic system with a space group P2₁/c, a=l.67951(7) nm, b=1.15193(4) nm, c=1.88908(8) nm, β= 108.335(1)°,V=3.4692(2) nm³, Z = 4, D_c = 2.382 g/cm³, F(000) =2408, μ=1.951mm^-1, R=0.0244, R_w = 0.0721.The heteropoly anion[H₂P₂Mo₅O₂₃]^4- and protonated 4,4'-bipy are connected to a supermolecular compound by hydrogen bonds; and the anions contain five MoO₆ octahedra and two PO₄ tetrahedron; Mo, Patoms show a distorted pentagonal bipyramidal configuration, and the heteropoly anions are connected to a infinite planar structure with the protonated 4,4'-bipy.

Key words: Hydrothermal synthesis, Molybdophosphate, Supermolecular compound, Crystal structure

CLC Number:

O614

TrendMD:

ZHAO Shi-Long, ZHANG Han-Hui, HUANG Chang-Cang. Hydrothermal Synthesis, Crystal Structure and Properties ofSupermolecular Compound (bipyH₂)₂(H₂P₂Mo₅O₂₃)·H₂O[J]. Chem. J. Chinese Universities, 2002, 23(4): 521.

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Hydrothermal Synthesis, Crystal Structure and Properties ofSupermolecular Compound (bipyH₂)₂(H₂P₂Mo₅O₂₃)·H₂O

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